pelletieb



H. E. PELLETIER.

VALVE.

APPLICATION FILED MAR. I, 1920.:

1,380,737. l Patented June 7, 1921.

II Ii 1g j@ @UQ-W narran Nistares PATENT FEQE,

HENRY E. PELLETIER, OF NEWARK, NEW' JERSEY, ASSG-NOR TO PELLETIER PRODUCTS MFG. CO., INC., 0F ELZABETH,1NEW JERSEY, A CORPORATEON 0F NEVI JERSEY.

VALVE.

Specification of Letters Patent.

Patented 'June 7, 1921.

Application led March 1, 1920. Serial No. 362,464.

To all 'whom t may concern: v

Be it known that l, HENRY E. PELLETIER, a citizen of the United States, residing in the city of Newark, county of Essex, and State of New Jersey, have invented certain new and useful lmprovements in Valves, of which the following is a full, clear, and eX- act description, such as will enable others skilled in the art to which it pertains to make, construct, and use the same, reference being had to the accompanying drawings, and to numerals of reference marked thereon, forming a part of this specification.

This invention relates to improvements in valves, and it belongs more particularly to that class in which the valve proper has a rotative movement to and from its seat.

The principal obj ect of the invention is to provide a simple and efficient valve of the class specified, in which both the valve proper and its seat are tapered, and in which provision is made whereby mechanically and positively operated means is employed to give the valve proper a quick rotative movement, and whereby automatic grinding of the valve in its seat will take place at every actuation and so maintain a tight seating action and also prevent any foreign matter from lodging in the seat.

The invention consists in the peculiar construction, combination and arrangement of parts as hereinafter referred to and claimed; and a practical embodiment of the invention is represented in the accompanying drawing, forming a material part of this specification, and in which Figure 1 is a sectional side elevation of a fragment of a container in which the invention is embodied, the section being taken centrally of the valve.

Fig. 2 is a cross section, taken on the line 2-2 of Fig. 1 looking in the direction indicated by the arrows, and

Fig. 3 is a similar section, taken on the line 3-3 of Fig. 1 looking in the direction indicated by the arrows.

Referring to the parts shown in the drawing, 4 represents a fragment of a cylinder `or container adapted to contain 'fluid under pressure, and 5 the interior thereof.

In the top of the cylinder casing, there is a threaded bore 6, which communicates with a valve chamber 7. Directly below the bore 6,- and preferably centrally thereof, a tapering or conical-shaped seat 6 provides communication'between the valve chamber and the interior of the cylinder, the valve seat in its tapering course narrowing toward the last-named. From the valve chamber to the outside of the cylinder, there is provided another bore 9, which is an outlet, and into which is screw-threaded a pipe 10 to receive the discharge from the valve chamber.

A threaded plug V11 is screwed into the bore 6, and this plug, between its screwthreads and an exterior flange 12, is made with an upwardly tapering portion 13, designed to make tight fit in a correspondlnglyy tapering wall defining the top edge of the bore. The head of the plug is made with flat sides 14, or in other non-circular form', suitable to receive a wrench whereby to turn it.

The plug 11 has an'` axial bore 15, into which is fitted f-or both longitudinal and rotative movements, the end of a stem 16, to the lower end of which is secured by a pin 17, a tapering or conical-shaped valve proper 18, designed to make a tight fit in the correspondingly shaped seat 8. About midway the length of the bore 15, at rightangles thereto, :two pins 19 are set in the plug 11 in alined relation. As best seen in Fig. 2, the inner rounded ends of these pins project into spiral threads or grooves 20, cut in the surface of the stem 16 in opposite or intercrossing relation. The purpose of this arrangement is to give the valve proper 18 a quick turning action as it moves either to or from its seat.

The valve proper is normally urged into tight lit with its seat by a spring 21, which is coiled around the valve stem and which has its opposite ends seated in recesses 22, provided for the purpose in the confronting faces of the plug and the valve proper. When the pressure in the cylinder overcomes the urge of the spring, the valve proper opens in an obvious manner, permitting the excess pressure to escape into the pipe 10.

With the construction shown and de'- scribed, the valve, under every opening an closing action, will grind on its seat, making a tight closure, and this grinding action will prevent foreign matter from lodging in the seat, and this result is accomplished by reason of theY loose connection between the inner ends of the pins 19 and the spiral. grooves in the stem 1 6 whereby come play or lostmotionis provided and also because of the less pitch of the threads in the plug l1 as compared with the pitch of the spiral threads or grooves.

Experience has demonstrated that the organization above described is a highly ellicient one, andwhile l have shown the preferred embodiment of my present invention,

ll do not Wish to be limited to the enact details of construction shown and described, as obvious modifications thereof, not involving the exercise of invention, be made by any skilled mechanic, and such departures from what is herein set forth, l consider Within the scope and terms of my claims.

Having thus described my invention, What l claim is l. ln a valve, a body having a chamber and an outlet therefor, a tapering seat forming an inlet into the chamber, a plug threaded into the body in line With the tapering seat and provided with an axial bore, a valve proper fitting the seat and provided with a stem having moving rit in said bore and spirally grooved in opposite directions, and pins set in the plug and said grooves togive the valve proper quick rotative movement when actuated.

2. ln a valve, a body having a valve chaml tative movement When actuated', and spring means normally holding the valve proper against its seat. f Y Y 3. The combination With a Vvalve body having a valve chamber and a tapering seat toi-ming an inlet into the chamber, of a plug threaded into the body in line with said seat and provided with an opening, a tapering valve proper fitting the seat and provided with a stern having moving lit in said plug opening and spirally grooved in opposite directions, pins set in the plug and engaging said grooves by which to give the valve quick rotative movement when actuated, and means tor normally pressing the valve against its seat.

4:. rlhe combination of a container adapted for holding fluid under pressure, a valve Vchamber provided in the container Wall and having a tapering seat forming an inlet from the container into the chamber, a plug threaded into the container Wall in line with the tapering seat and having an openingtherein, a valve proper fitting the seat and provided with a stem having moving tit in said plug opening and spirally grooved in tivo directions, pins arranged to engage said grooves to give the valve quick rotative movement when moved 'to and from its seat, and a spring confined betvveen the plugand valve proper for normally holding the valve against its seat.

rlhis specification Y signed Vand witnessed this 25th day of February, 1920.

' irENEv E. PELLETIER.

l/Vitnesses:

FREDK C. FISCHER, FERDINAND T. NoLL. 

